KANSAS CITY, Mo. — Missouri Attorney General Jay Nixon on Tuesday filed a lawsuit against a New Hampshire man he accused of charging Missourians for accessing pornographic Web sites they never visited.

Nixon’s office said Tuesday that he filed suit against Michael Walczak of Bedford, N.H., and his businesses, Phoenix One Billing LLC and National One Telecom Inc.

The suit accuses Walczak of demanding payment from at least 59 Missouri customers for long-distance calls to foreign countries that weren’t made and for accessing pay-per-view adult Web sites. Nixon said it appeared the charges sometimes came from auto-dialing software installed on people’s computers without their knowledge.

Walczak is accused of deception, fraud and unfair trade practices. Nixon wants the Jackson County Circuit Court to order the people wrongly charged be paid back, to block Walczak from engaging in unfair trade practices and to impose a fine of $1,000 per violation.

Walczak could not be reached for comment. There were no phone listings for him or the companies in New Hampshire.